Search a number
-
+
220331023 = 1164331151
BaseRepresentation
bin11010010000111…
…11110000001111
3120100120222100021
431020133300033
5422401043043
633510243011
75313532333
oct1510376017
9510528307
10220331023
11103409a60
1261956467
13368552b3
14213957c3
15145233ed
hexd21fc0f

220331023 has 8 divisors (see below), whose sum is σ = 240742656. Its totient is φ = 199983000.

The previous prime is 220331003. The next prime is 220331039. The reversal of 220331023 is 320133022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220331023 - 25 = 220330991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220330988 and 220331006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220331003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8503 + ... + 22648.

It is an arithmetic number, because the mean of its divisors is an integer number (30092832).

Almost surely, 2220331023 is an apocalyptic number.

220331023 is a deficient number, since it is larger than the sum of its proper divisors (20411633).

220331023 is a wasteful number, since it uses less digits than its factorization.

220331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31805.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 220331023 is about 14843.5515628841. The cubic root of 220331023 is about 603.9836981917.

Adding to 220331023 its reverse (320133022), we get a palindrome (540464045).

The spelling of 220331023 in words is "two hundred twenty million, three hundred thirty-one thousand, twenty-three".

Divisors: 1 11 643 7073 31151 342661 20030093 220331023